Soil Integrated Sensor-7 in 1 RS485 Ec pH NPK TDS Temperature Soil Moisture Meter

Soil Integrated Sensor-7 in 1 RS485 Ec pH NPK TDS Temperature Soil Moisture Meter

The Soil NPK Sensor is a portable, high-precision, and low-cost solution for real-time soil fertility monitoring. Designed to measure key nutrients—Nitrogen (N), Phosphorus (P), and Potassium (K)—as well as temperature, humidity, conductivity, and pH, this sensor allows farmers, agronomists, and researchers to quickly assess soil nutrient levels. Supplied by BDTronics, it supports Modbus RS485 communication and can be integrated with Arduino or other microcontrollers for automated data acquisition.

Unlike spectral analysis methods, which may only achieve 60–70% accuracy, this sensor provides fast, highly accurate measurements with minimal preparation. Simply insert the stainless steel probe into the soil, connect to your Arduino, and get reliable readings instantly.

Features:

•        Measures key soil fertility parameters: N, P, K, temperature, humidity, pH, and conductivity

•        IP68 Waterproof sensor

•        Portable and compact design for easy field use and transport

•        Fast response time: less than 1 second for nutrient readings

•        High-accuracy measurements suitable for professional agricultural analysis

•        Durable stainless steel probe for long-term soil use

•        Minimal interference from soil-less or non-uniform areas

•        Supports RS485, 4–20mA, 0–5V, and 0–10V output options

•        Easy to integrate with Arduino, microcontrollers, or data acquisition systems

•        IP68 rated for long-term water immersion

•        Low power consumption, 0.5W at 24V DC

•        Comes with English manual and setup guide for easy operation

Specifications:

Brand: ComWinTop (CWT)

Protection: IP68 Waterproof

Temperature:

•        Measuring Range: -40℃ to 80℃

•        Accuracy: ±5℃ (at 25℃)

•        Long-term Stability: ≤0.1%℃/year

•        Response Time: ≤15s

Humidity:

•        Measuring Range: 0–100% RH

•        Accuracy: 2% (0–50%), 3% (50–100%)

•        Long-term Stability: ≤1% RH/year

•        Response Time: ≤4s

Conductivity (EC):

•        Measuring Range: 0–20000 μS/cm

•        Accuracy: ±3% (0–10000 μS/cm), ±5% (10000–20000 μS/cm)

•        Long-term Stability: ≤1 μS/cm/year

•        Response Time: ≤1s

pH:

•        Measuring Range: 3–9 pH

•        Accuracy: ±0.3 pH

•        Long-term Stability: ≤5%/year

•        Response Time: ≤10s

Nitrogen / Phosphorus / Potassium:

•        Measuring Range: 1–1999 mg/kg (mg/L)

•        Resolution: 1 mg/kg (mg/L)

•        Response Time: <1s

Basic Parameters:

•        Power Supply: DC 4.5–30V

•        Max Power Consumption: 0.5W @ 24V DC

•        Protection Class: IP68 (long-term water immersion)

•        Cable Length: Default 2m (customizable)

•        Operating Environment: -40℃ to 80℃

•        Dimensions: 45 × 15 × 123 mm

•        Output: RS485 / 4–20mA / 0–5V / 0–10V

Functions and Features:

•        Compact design ensures easy installation, operation, and maintenance

•        Stainless steel probe ensures long-term durability and reliability

•        Can be used in various soil conditions, including challenging areas

•        High measurement accuracy and reliable performance

•        Fast response and efficient data transmission for real-time monitoring

Applications:

•        Agricultural soil fertility analysis

•        Smart farming and precision agriculture

•        Fertilizer requirement assessment

•        Research and experimental soil studies

•        Integration with Arduino or automated data logging systems

•        Soil nutrient monitoring for plantations, gardens, and farms

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